Erm, I don't know which Sale of Goods Act you're reading but after the first 30 days you're not entitled to a refund by default, the retailer only had to repair or replace it. They also have 30 days at least to do so. You're only entitled to a refund it they fail to do that. You will also still have to return the item, at your expense (unless agreed otherwise in the T&Cs). That's why the carriers are able to get you to return for repair. Not sure why you would think the Sale of Goods Act doesn't cover contract sales just like any other sale.
Incidentally the Sale of Goods Act was actually scrapped a couple of years ago and replaced with the (similar) Consumer Rights Act, but please try to get your facts right before posting such things as you're misleading other people.
Biting the hand that feeds IT
